Cleaned up the SRLG and disjoint path code and naming.

Change-Id: I02b6fe5ee1e3f5eadc4e88800386a23349ee5e58
diff --git a/core/api/src/main/java/org/onosproject/net/topology/PathService.java b/core/api/src/main/java/org/onosproject/net/topology/PathService.java
index d41b4ee..0bd4d75 100644
--- a/core/api/src/main/java/org/onosproject/net/topology/PathService.java
+++ b/core/api/src/main/java/org/onosproject/net/topology/PathService.java
@@ -44,8 +44,8 @@
      * edge-weight entity, between the specified source and destination
      * network elements.
      *
-     * @param src source element
-     * @param dst destination element
+     * @param src    source element
+     * @param dst    destination element
      * @param weight edge-weight entity
      * @return set of all shortest paths between the two element
      */
@@ -55,8 +55,8 @@
      * Returns the set of all disjoint shortest path pairs, precomputed in terms of hop-count,
      * between the specified source and destination devices.
      *
-     * @param src      source device
-     * @param dst      destination device
+     * @param src source device
+     * @param dst destination device
      * @return set of all shortest paths between the two devices
      */
     Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst);
@@ -65,9 +65,9 @@
      * Returns the set of all disjoint shortest path pairs, computed using the supplied
      * edge-weight entity, between the specified source and destination devices.
      *
-     * @param src      source device
-     * @param dst      destination device
-     * @param weight   edge-weight entity
+     * @param src    source device
+     * @param dst    destination device
+     * @param weight edge-weight entity
      * @return set of all shortest paths between the two devices
      */
     Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst,
@@ -77,25 +77,25 @@
      * Returns the set of all disjoint shortest path pairs, precomputed in terms of hop-count,
      * between the specified source and destination devices.
      *
-     * @param src      source device
-     * @param dst      destination device
+     * @param src         source device
+     * @param dst         destination device
      * @param riskProfile map of edges to risk profiles
      * @return set of all shortest paths between the two devices
      */
-    Set<DisjointPath> getSRLGDisjointPaths(ElementId src, ElementId dst,
-                                           Map<Link, Object> riskProfile);
+    Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst,
+                                       Map<Link, Object> riskProfile);
 
     /**
      * Returns the set of all disjoint shortest path pairs, precomputed in terms of hop-count,
      * between the specified source and destination devices.
      *
-     * @param src      source device
-     * @param dst      destination device
-     * @param weight    edge-weight entity
+     * @param src         source device
+     * @param dst         destination device
+     * @param weight      edge-weight entity
      * @param riskProfile map of edges to risk profiles
      * @return set of all shortest paths between the two devices
      */
-    Set<DisjointPath> getSRLGDisjointPaths(ElementId src, ElementId dst,
-                                           LinkWeight weight, Map<Link, Object> riskProfile);
+    Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst,
+                                       LinkWeight weight, Map<Link, Object> riskProfile);
 
 }
diff --git a/core/api/src/main/java/org/onosproject/net/topology/TopologyService.java b/core/api/src/main/java/org/onosproject/net/topology/TopologyService.java
index 7b22a36..466e4f9 100644
--- a/core/api/src/main/java/org/onosproject/net/topology/TopologyService.java
+++ b/core/api/src/main/java/org/onosproject/net/topology/TopologyService.java
@@ -29,7 +29,7 @@
  * Service for providing network topology information.
  */
 public interface TopologyService
-    extends ListenerService<TopologyEvent, TopologyListener> {
+        extends ListenerService<TopologyEvent, TopologyListener> {
 
     /**
      * Returns the current topology descriptor.
@@ -74,8 +74,8 @@
     /**
      * Returns the set of devices that belong to the specified cluster.
      *
-     * @param topology  topology descriptor
-     * @param cluster topology cluster
+     * @param topology topology descriptor
+     * @param cluster  topology cluster
      * @return set of cluster devices
      */
     Set<DeviceId> getClusterDevices(Topology topology, TopologyCluster cluster);
@@ -83,8 +83,8 @@
     /**
      * Returns the set of links that form the specified cluster.
      *
-     * @param topology  topology descriptor
-     * @param cluster topology cluster
+     * @param topology topology descriptor
+     * @param cluster  topology cluster
      * @return set of cluster links
      */
     Set<Link> getClusterLinks(Topology topology, TopologyCluster cluster);
@@ -141,28 +141,29 @@
      * Returns the set of all disjoint shortest path pairs, precomputed in terms of hop-count,
      * between the specified source and destination devices.
      *
-     * @param topology topology descriptor
-     * @param src      source device
-     * @param dst      destination device
+     * @param topology    topology descriptor
+     * @param src         source device
+     * @param dst         destination device
      * @param riskProfile map of edges to risk profiles
      * @return set of all shortest paths between the two devices
      */
-    Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
-                                           Map<Link, Object> riskProfile);
+    Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
+                                       Map<Link, Object> riskProfile);
 
     /**
      * Returns the set of all disjoint shortest path pairs, precomputed in terms of hop-count,
      * between the specified source and destination devices.
      *
-     * @param topology topology descriptor
-     * @param src      source device
-     * @param dst      destination device
-     * @param weight    edge-weight entity
+     * @param topology    topology descriptor
+     * @param src         source device
+     * @param dst         destination device
+     * @param weight      edge-weight entity
      * @param riskProfile map of edges to risk profiles
      * @return set of all shortest paths between the two devices
      */
-    Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
-                                           LinkWeight weight, Map<Link, Object> riskProfile);
+    Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
+                                       LinkWeight weight, Map<Link, Object> riskProfile);
+
     /**
      * Indicates whether the specified connection point is part of the network
      * infrastructure or part of network edge.
diff --git a/core/api/src/main/java/org/onosproject/net/topology/TopologyStore.java b/core/api/src/main/java/org/onosproject/net/topology/TopologyStore.java
index f194878..039a205 100644
--- a/core/api/src/main/java/org/onosproject/net/topology/TopologyStore.java
+++ b/core/api/src/main/java/org/onosproject/net/topology/TopologyStore.java
@@ -149,8 +149,8 @@
      * be treated as if they were in the same risk group.
      * @return set of shortest paths
      */
-    Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
-                                           LinkWeight weight, Map<Link, Object> riskProfile);
+    Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
+                                       LinkWeight weight, Map<Link, Object> riskProfile);
 
     /**
      * Returns the set of pre-computed SRLG shortest paths between src and dest.
@@ -162,8 +162,8 @@
      * be treated as if they were in the same risk group.
      * @return set of shortest paths
      */
-    Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
-                                           Map<Link, Object> riskProfile);
+    Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
+                                       Map<Link, Object> riskProfile);
 
 
     /**
diff --git a/core/api/src/test/java/org/onosproject/net/intent/IntentTestsMocks.java b/core/api/src/test/java/org/onosproject/net/intent/IntentTestsMocks.java
index 8d30551..d42e22f 100644
--- a/core/api/src/test/java/org/onosproject/net/intent/IntentTestsMocks.java
+++ b/core/api/src/test/java/org/onosproject/net/intent/IntentTestsMocks.java
@@ -17,12 +17,10 @@
 
 import com.google.common.base.MoreObjects;
 import com.google.common.collect.ImmutableSet;
-
 import org.onlab.util.Bandwidth;
 import org.onosproject.core.DefaultGroupId;
 import org.onosproject.core.GroupId;
 import org.onosproject.net.DeviceId;
-import org.onosproject.net.DisjointPath;
 import org.onosproject.net.ElementId;
 import org.onosproject.net.Link;
 import org.onosproject.net.NetTestTools;
@@ -38,6 +36,9 @@
 import org.onosproject.net.flow.instructions.Instruction;
 import org.onosproject.net.flow.instructions.Instructions;
 import org.onosproject.net.flow.instructions.Instructions.MetadataInstruction;
+import org.onosproject.net.resource.ResourceAllocation;
+import org.onosproject.net.resource.ResourceRequest;
+import org.onosproject.net.resource.ResourceType;
 import org.onosproject.net.resource.link.BandwidthResource;
 import org.onosproject.net.resource.link.BandwidthResourceRequest;
 import org.onosproject.net.resource.link.LambdaResource;
@@ -49,13 +50,10 @@
 import org.onosproject.net.resource.link.LinkResourceService;
 import org.onosproject.net.resource.link.MplsLabel;
 import org.onosproject.net.resource.link.MplsLabelResourceAllocation;
-import org.onosproject.net.resource.ResourceAllocation;
-import org.onosproject.net.resource.ResourceRequest;
-import org.onosproject.net.resource.ResourceType;
 import org.onosproject.net.topology.DefaultTopologyEdge;
 import org.onosproject.net.topology.DefaultTopologyVertex;
 import org.onosproject.net.topology.LinkWeight;
-import org.onosproject.net.topology.PathService;
+import org.onosproject.net.topology.PathServiceAdapter;
 import org.onosproject.net.topology.TopologyVertex;
 import org.onosproject.store.Timestamp;
 
@@ -65,14 +63,11 @@
 import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
 import java.util.concurrent.atomic.AtomicLong;
 
-import static org.onosproject.net.NetTestTools.createPath;
-import static org.onosproject.net.NetTestTools.did;
-import static org.onosproject.net.NetTestTools.link;
+import static org.onosproject.net.NetTestTools.*;
 
 /**
  * Common mocks used by the intent framework tests.
@@ -136,7 +131,7 @@
     /**
      * Mock path service for creating paths within the test.
      */
-    public static class MockPathService implements PathService {
+    public static class MockPathService extends PathServiceAdapter {
 
         final String[] pathHops;
         final String[] reversePathHops;
@@ -187,28 +182,6 @@
             }
             return paths;
         }
-
-        @Override
-        public Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst) {
-            return null;
-        }
-
-        @Override
-        public Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst, LinkWeight weight) {
-            return null;
-        }
-
-        @Override
-        public Set<DisjointPath> getSRLGDisjointPaths(ElementId src, ElementId dst,
-                                                      Map<Link, Object> riskProfile) {
-            return null;
-        }
-
-        @Override
-        public Set<DisjointPath> getSRLGDisjointPaths(ElementId src, ElementId dst, LinkWeight weight,
-                                                      Map<Link, Object> riskProfile) {
-            return null;
-        }
     }
 
     public static class MockLinkResourceAllocations implements LinkResourceAllocations {
diff --git a/core/api/src/test/java/org/onosproject/net/topology/PathServiceAdapter.java b/core/api/src/test/java/org/onosproject/net/topology/PathServiceAdapter.java
new file mode 100644
index 0000000..6a8e586
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/net/topology/PathServiceAdapter.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.net.topology;
+
+import org.onosproject.net.DisjointPath;
+import org.onosproject.net.ElementId;
+import org.onosproject.net.Link;
+import org.onosproject.net.Path;
+
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * Test adapter for path service.
+ */
+public class PathServiceAdapter implements PathService {
+    @Override
+    public Set<Path> getPaths(ElementId src, ElementId dst) {
+        return null;
+    }
+
+    @Override
+    public Set<Path> getPaths(ElementId src, ElementId dst, LinkWeight weight) {
+        return null;
+    }
+
+    @Override
+    public Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst) {
+        return null;
+    }
+
+    @Override
+    public Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst, LinkWeight weight) {
+        return null;
+    }
+
+    @Override
+    public Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst,
+                                              Map<Link, Object> riskProfile) {
+        return null;
+    }
+
+    @Override
+    public Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst,
+                                              LinkWeight weight,
+                                              Map<Link, Object> riskProfile) {
+        return null;
+    }
+}
diff --git a/core/api/src/test/java/org/onosproject/net/topology/TopologyServiceAdapter.java b/core/api/src/test/java/org/onosproject/net/topology/TopologyServiceAdapter.java
index b5b3056..72cc67d 100644
--- a/core/api/src/test/java/org/onosproject/net/topology/TopologyServiceAdapter.java
+++ b/core/api/src/test/java/org/onosproject/net/topology/TopologyServiceAdapter.java
@@ -90,25 +90,28 @@
     @Override
     public void removeListener(TopologyListener listener) {
     }
+
     @Override
     public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst) {
         return null;
     }
 
     @Override
-    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeight weight) {
+    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src,
+                                              DeviceId dst, LinkWeight weight) {
         return null;
     }
 
     @Override
-    public Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
-                                                  Map<Link, Object> riskProfile) {
+    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
+                                              Map<Link, Object> riskProfile) {
         return null;
     }
 
     @Override
-    public Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeight weight,
-                                                  Map<Link, Object> riskProfile) {
+    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src,
+                                              DeviceId dst, LinkWeight weight,
+                                              Map<Link, Object> riskProfile) {
         return null;
     }
 
diff --git a/core/common/src/main/java/org/onosproject/common/DefaultTopology.java b/core/common/src/main/java/org/onosproject/common/DefaultTopology.java
index f2f86ea..3c5c540 100644
--- a/core/common/src/main/java/org/onosproject/common/DefaultTopology.java
+++ b/core/common/src/main/java/org/onosproject/common/DefaultTopology.java
@@ -23,6 +23,7 @@
 import com.google.common.collect.ImmutableSetMultimap;
 import com.google.common.collect.ImmutableSetMultimap.Builder;
 import org.onlab.graph.DijkstraGraphSearch;
+import org.onlab.graph.DisjointPathPair;
 import org.onlab.graph.GraphPathSearch;
 import org.onlab.graph.GraphPathSearch.Result;
 import org.onlab.graph.SRLGGraphSearch;
@@ -49,11 +50,11 @@
 import org.onosproject.net.topology.TopologyGraph;
 import org.onosproject.net.topology.TopologyVertex;
 
-import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.stream.Collectors;
 
 import static com.google.common.base.MoreObjects.toStringHelper;
 import static com.google.common.base.Preconditions.checkArgument;
@@ -333,7 +334,7 @@
      * @return set of shortest disjoint path pairs
      */
     public Set<DisjointPath> getDisjointPaths(DeviceId src, DeviceId dst) {
-        return getDisjointPaths(src, dst, null);
+        return getDisjointPaths(src, dst, (LinkWeight) null);
     }
 
     /**
@@ -369,27 +370,15 @@
      *
      * @param src         source device
      * @param dst         destination device
-     * @param riskProfile map representing risk groups for each edge
-     * @return set of shortest disjoint paths
-     */
-    public Set<DisjointPath> getSRLGDisjointPathsD(DeviceId src, DeviceId dst, Map<TopologyEdge, Object> riskProfile) {
-        return getSRLGDisjointPathsD(src, dst, null, riskProfile);
-    }
-
-    /**
-     * Computes on-demand the set of shortest disjoint risk groups path pairs between source and
-     * destination devices.
-     *
-     * @param src         source device
-     * @param dst         destination device
      * @param weight      edge weight object
      * @param riskProfile map representing risk groups for each edge
      * @return set of shortest disjoint paths
      */
-    public Set<DisjointPath> getSRLGDisjointPathsD(DeviceId src, DeviceId dst, LinkWeight weight, Map<TopologyEdge,
-            Object> riskProfile) {
-        final DefaultTopologyVertex srcV = new DefaultTopologyVertex(src);
-        final DefaultTopologyVertex dstV = new DefaultTopologyVertex(dst);
+    private Set<DisjointPath> disjointPaths(DeviceId src, DeviceId dst, LinkWeight weight,
+                                                Map<TopologyEdge, Object> riskProfile) {
+        DefaultTopologyVertex srcV = new DefaultTopologyVertex(src);
+        DefaultTopologyVertex dstV = new DefaultTopologyVertex(dst);
+
         Set<TopologyVertex> vertices = graph.getVertexes();
         if (!vertices.contains(srcV) || !vertices.contains(dstV)) {
             // src or dst not part of the current graph
@@ -416,35 +405,27 @@
      * @param riskProfile map representing risk groups for each link
      * @return set of shortest disjoint paths
      */
-    public Set<DisjointPath> getSRLGDisjointPaths(DeviceId src, DeviceId dst, LinkWeight weight,
-                                                  Map<Link, Object> riskProfile) {
+    public Set<DisjointPath> getDisjointPaths(DeviceId src, DeviceId dst, LinkWeight weight,
+                                              Map<Link, Object> riskProfile) {
         Map<TopologyEdge, Object> riskProfile2 = new HashMap<>();
         for (Link l : riskProfile.keySet()) {
             riskProfile2.put(new TopologyEdge() {
-                final Link cur = l;
+                Link cur = l;
 
                 public Link link() {
                     return cur;
                 }
 
                 public TopologyVertex src() {
-                    return new TopologyVertex() {
-                        public DeviceId deviceId() {
-                            return src;
-                        }
-                    };
+                    return () -> src;
                 }
 
                 public TopologyVertex dst() {
-                    return new TopologyVertex() {
-                        public DeviceId deviceId() {
-                            return dst;
-                        }
-                    };
+                    return () -> dst;
                 }
             }, riskProfile.get(l));
         }
-        return getSRLGDisjointPathsD(src, dst, weight, riskProfile2);
+        return disjointPaths(src, dst, weight, riskProfile2);
     }
 
     /**
@@ -456,22 +437,20 @@
      * @param riskProfile map representing risk groups for each link
      * @return set of shortest disjoint paths
      */
-    public Set<DisjointPath> getSRLGDisjointPaths(DeviceId src, DeviceId dst, Map<Link, Object> riskProfile) {
-        return getSRLGDisjointPaths(src, dst, null, riskProfile);
+    public Set<DisjointPath> getDisjointPaths(DeviceId src, DeviceId dst, Map<Link, Object> riskProfile) {
+        return getDisjointPaths(src, dst, null, riskProfile);
     }
 
     // Converts graph path to a network path with the same cost.
     private Path networkPath(org.onlab.graph.Path<TopologyVertex, TopologyEdge> path) {
-        List<Link> links = new ArrayList<>();
-        for (TopologyEdge edge : path.edges()) {
-            links.add(edge.link());
-        }
+        List<Link> links = path.edges().stream().map(TopologyEdge::link).collect(Collectors.toList());
         return new DefaultPath(CORE_PROVIDER_ID, links, path.cost());
     }
 
-    private DisjointPath networkDisjointPath(org.onlab.graph.DisjointPathPair<TopologyVertex, TopologyEdge> path) {
+    private DisjointPath networkDisjointPath(DisjointPathPair<TopologyVertex, TopologyEdge> path) {
         return new DefaultDisjointPath(CORE_PROVIDER_ID,
-                                       (DefaultPath) networkPath(path.path1), (DefaultPath) networkPath(path.path2));
+                                       (DefaultPath) networkPath(path.primary()),
+                                       (DefaultPath) networkPath(path.secondary()));
     }
 
     // Searches for SCC clusters in the network topology graph using Tarjan
@@ -484,6 +463,7 @@
     private ImmutableMap<ClusterId, TopologyCluster> buildTopologyClusters() {
         ImmutableMap.Builder<ClusterId, TopologyCluster> clusterBuilder = ImmutableMap.builder();
         SCCResult<TopologyVertex, TopologyEdge> results = clusterResults.get();
+
         // Extract both vertexes and edges from the results; the lists form
         // pairs along the same index.
         List<Set<TopologyVertex>> clusterVertexes = results.clusterVertexes();
diff --git a/core/common/src/test/java/org/onosproject/store/trivial/SimpleTopologyStore.java b/core/common/src/test/java/org/onosproject/store/trivial/SimpleTopologyStore.java
index 0246d42..29c5d84 100644
--- a/core/common/src/test/java/org/onosproject/store/trivial/SimpleTopologyStore.java
+++ b/core/common/src/test/java/org/onosproject/store/trivial/SimpleTopologyStore.java
@@ -127,15 +127,15 @@
     }
 
     @Override
-    public Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
+    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
                                                   Map<Link, Object> riskProfile) {
-        return defaultTopology(topology).getSRLGDisjointPaths(src, dst, riskProfile);
+        return defaultTopology(topology).getDisjointPaths(src, dst, riskProfile);
     }
 
     @Override
-    public Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
+    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
                                                   LinkWeight weight, Map<Link, Object> riskProfile) {
-        return defaultTopology(topology).getSRLGDisjointPaths(src, dst, weight, riskProfile);
+        return defaultTopology(topology).getDisjointPaths(src, dst, weight, riskProfile);
     }
 
     @Override
diff --git a/core/net/src/main/java/org/onosproject/net/topology/impl/PathManager.java b/core/net/src/main/java/org/onosproject/net/topology/impl/PathManager.java
index 5f84ee9..8347ee3 100644
--- a/core/net/src/main/java/org/onosproject/net/topology/impl/PathManager.java
+++ b/core/net/src/main/java/org/onosproject/net/topology/impl/PathManager.java
@@ -134,7 +134,7 @@
 
     @Override
     public Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst) {
-        return getDisjointPaths(src, dst, null);
+        return getDisjointPaths(src, dst, (LinkWeight) null);
     }
 
     @Override
@@ -171,14 +171,14 @@
     }
 
     @Override
-    public Set<DisjointPath> getSRLGDisjointPaths(ElementId src, ElementId dst,
-                                                  Map<Link, Object> riskProfile) {
-        return getSRLGDisjointPaths(src, dst, null, riskProfile);
+    public Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst,
+                                              Map<Link, Object> riskProfile) {
+        return getDisjointPaths(src, dst, null, riskProfile);
     }
 
     @Override
-    public Set<DisjointPath> getSRLGDisjointPaths(ElementId src, ElementId dst, LinkWeight weight,
-                                                  Map<Link, Object> riskProfile) {
+    public Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst, LinkWeight weight,
+                                              Map<Link, Object> riskProfile) {
         checkNotNull(src, ELEMENT_ID_NULL);
         checkNotNull(dst, ELEMENT_ID_NULL);
 
@@ -204,8 +204,8 @@
         // devices.
         Topology topology = topologyService.currentTopology();
         Set<DisjointPath> paths = weight == null ?
-                topologyService.getSRLGDisjointPaths(topology, srcDevice, dstDevice, riskProfile) :
-                topologyService.getSRLGDisjointPaths(topology, srcDevice, dstDevice, weight, riskProfile);
+                topologyService.getDisjointPaths(topology, srcDevice, dstDevice, riskProfile) :
+                topologyService.getDisjointPaths(topology, srcDevice, dstDevice, weight, riskProfile);
 
         return edgeToEdgePathsDisjoint(srcEdge, dstEdge, paths);
     }
@@ -249,6 +249,7 @@
         endToEndPaths.add(edgeToEdgePathD(srcLink, dstLink, null));
         return endToEndPaths;
     }
+
     private Set<DisjointPath> edgeToEdgePathsDisjoint(EdgeLink srcLink, EdgeLink dstLink, Set<DisjointPath> paths) {
         Set<DisjointPath> endToEndPaths = Sets.newHashSetWithExpectedSize(paths.size());
         for (DisjointPath path : paths) {
diff --git a/core/net/src/main/java/org/onosproject/net/topology/impl/TopologyManager.java b/core/net/src/main/java/org/onosproject/net/topology/impl/TopologyManager.java
index 7302b3c..4425e1c 100644
--- a/core/net/src/main/java/org/onosproject/net/topology/impl/TopologyManager.java
+++ b/core/net/src/main/java/org/onosproject/net/topology/impl/TopologyManager.java
@@ -62,7 +62,7 @@
 @Service
 public class TopologyManager
         extends AbstractListenerProviderRegistry<TopologyEvent, TopologyListener,
-                                                 TopologyProvider, TopologyProviderService>
+        TopologyProvider, TopologyProviderService>
         implements TopologyService, TopologyProviderRegistry {
 
     public static final String TOPOLOGY_NULL = "Topology cannot be null";
@@ -70,6 +70,7 @@
     private static final String CLUSTER_ID_NULL = "Cluster ID cannot be null";
     private static final String CLUSTER_NULL = "Topology cluster cannot be null";
     public static final String CONNECTION_POINT_NULL = "Connection point cannot be null";
+    public static final String LINK_WEIGHT_NULL = "Link weight cannot be null";
 
     private final Logger log = getLogger(getClass());
 
@@ -172,31 +173,33 @@
     }
 
     @Override
-    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeight weight) {
+    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src,
+                                              DeviceId dst, LinkWeight weight) {
         checkNotNull(topology, TOPOLOGY_NULL);
         checkNotNull(src, DEVICE_ID_NULL);
         checkNotNull(dst, DEVICE_ID_NULL);
-        checkNotNull(weight, "Link weight cannot be null");
+        checkNotNull(weight, LINK_WEIGHT_NULL);
         return store.getDisjointPaths(topology, src, dst, weight);
     }
 
     @Override
-    public Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
-                                                  Map<Link, Object> riskProfile) {
+    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
+                                              Map<Link, Object> riskProfile) {
         checkNotNull(topology, TOPOLOGY_NULL);
         checkNotNull(src, DEVICE_ID_NULL);
         checkNotNull(dst, DEVICE_ID_NULL);
-        return store.getSRLGDisjointPaths(topology, src, dst, riskProfile);
+        return store.getDisjointPaths(topology, src, dst, riskProfile);
     }
 
     @Override
-    public Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeight weight,
-                                                  Map<Link, Object> riskProfile) {
+    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src,
+                                              DeviceId dst, LinkWeight weight,
+                                              Map<Link, Object> riskProfile) {
         checkNotNull(topology, TOPOLOGY_NULL);
         checkNotNull(src, DEVICE_ID_NULL);
         checkNotNull(dst, DEVICE_ID_NULL);
-        checkNotNull(weight, "Link weight cannot be null");
-        return store.getSRLGDisjointPaths(topology, src, dst, weight, riskProfile);
+        checkNotNull(weight, LINK_WEIGHT_NULL);
+        return store.getDisjointPaths(topology, src, dst, weight, riskProfile);
     }
 
     @Override
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/MultiPointToSinglePointIntentCompilerTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/MultiPointToSinglePointIntentCompilerTest.java
index bf911e2..03d664d 100644
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/MultiPointToSinglePointIntentCompilerTest.java
+++ b/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/MultiPointToSinglePointIntentCompilerTest.java
@@ -21,9 +21,7 @@
 import org.onosproject.core.ApplicationId;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.DeviceId;
-import org.onosproject.net.DisjointPath;
 import org.onosproject.net.ElementId;
-import org.onosproject.net.Link;
 import org.onosproject.net.Path;
 import org.onosproject.net.device.DeviceServiceAdapter;
 import org.onosproject.net.flow.TrafficSelector;
@@ -33,12 +31,10 @@
 import org.onosproject.net.intent.IntentTestsMocks;
 import org.onosproject.net.intent.LinkCollectionIntent;
 import org.onosproject.net.intent.MultiPointToSinglePointIntent;
-import org.onosproject.net.topology.LinkWeight;
-import org.onosproject.net.topology.PathService;
+import org.onosproject.net.topology.PathServiceAdapter;
 
 import java.util.HashSet;
 import java.util.List;
-import java.util.Map;
 import java.util.Set;
 
 import static org.hamcrest.CoreMatchers.instanceOf;
@@ -63,7 +59,7 @@
     /**
      * Mock path service for creating paths within the test.
      */
-    private static class MockPathService implements PathService {
+    private static class MockPathService extends PathServiceAdapter {
 
         final String[] pathHops;
 
@@ -89,33 +85,6 @@
 
             return result;
         }
-
-        @Override
-        public Set<Path> getPaths(ElementId src, ElementId dst, LinkWeight weight) {
-            return null;
-        }
-
-        @Override
-        public Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst) {
-            return null;
-        }
-
-        @Override
-        public Set<DisjointPath> getDisjointPaths(ElementId src, ElementId dst, LinkWeight weight) {
-            return null;
-        }
-
-        @Override
-        public Set<DisjointPath> getSRLGDisjointPaths(ElementId src, ElementId dst,
-                                                      Map<Link, Object> riskProfile) {
-            return null;
-        }
-
-        @Override
-        public Set<DisjointPath> getSRLGDisjointPaths(ElementId src, ElementId dst, LinkWeight weight,
-                                                      Map<Link, Object> riskProfile) {
-            return null;
-        }
     }
 
     /**
diff --git a/core/net/src/test/java/org/onosproject/net/topology/impl/PathManagerTest.java b/core/net/src/test/java/org/onosproject/net/topology/impl/PathManagerTest.java
index fc46c48..1911da5 100644
--- a/core/net/src/test/java/org/onosproject/net/topology/impl/PathManagerTest.java
+++ b/core/net/src/test/java/org/onosproject/net/topology/impl/PathManagerTest.java
@@ -19,19 +19,15 @@
 import org.junit.Before;
 import org.junit.Test;
 import org.onosproject.net.DeviceId;
-import org.onosproject.net.DisjointPath;
 import org.onosproject.net.ElementId;
 import org.onosproject.net.Host;
 import org.onosproject.net.HostId;
-import org.onosproject.net.Link;
 import org.onosproject.net.Path;
-import org.onosproject.net.host.HostService;
 import org.onosproject.net.host.HostServiceAdapter;
 import org.onosproject.net.provider.ProviderId;
 import org.onosproject.net.topology.LinkWeight;
 import org.onosproject.net.topology.PathService;
 import org.onosproject.net.topology.Topology;
-import org.onosproject.net.topology.TopologyService;
 import org.onosproject.net.topology.TopologyServiceAdapter;
 
 import java.util.HashMap;
@@ -139,7 +135,7 @@
     }
 
     // Fake entity to give out paths.
-    private class FakeTopoMgr extends TopologyServiceAdapter implements TopologyService {
+    private class FakeTopoMgr extends TopologyServiceAdapter {
         Set<Path> paths = new HashSet<>();
 
         @Override
@@ -151,32 +147,10 @@
         public Set<Path> getPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeight weight) {
             return paths;
         }
-
-        @Override
-        public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst) {
-            return null;
-        }
-
-        @Override
-        public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeight weight) {
-            return null;
-        }
-
-        @Override
-        public Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
-                                                      Map<Link, Object> riskProfile) {
-            return null;
-        }
-
-        @Override
-        public Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst, LinkWeight weight,
-                                                      Map<Link, Object> riskProfile) {
-            return null;
-        }
     }
 
     // Fake entity to give out hosts.
-    private class FakeHostMgr extends HostServiceAdapter implements HostService {
+    private class FakeHostMgr extends HostServiceAdapter  {
         private Map<HostId, Host> hosts = new HashMap<>();
 
         @Override
diff --git a/core/store/dist/src/main/java/org/onosproject/store/topology/impl/DistributedTopologyStore.java b/core/store/dist/src/main/java/org/onosproject/store/topology/impl/DistributedTopologyStore.java
index 4eeed7c..da4e3cc 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/topology/impl/DistributedTopologyStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/topology/impl/DistributedTopologyStore.java
@@ -179,15 +179,15 @@
     }
 
     @Override
-    public Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
-                                                  Map<Link, Object> riskProfile) {
-        return defaultTopology(topology).getSRLGDisjointPaths(src, dst, riskProfile);
+    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
+                                              Map<Link, Object> riskProfile) {
+        return defaultTopology(topology).getDisjointPaths(src, dst, riskProfile);
     }
 
     @Override
-    public Set<DisjointPath> getSRLGDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
-                                                  LinkWeight weight, Map<Link, Object> riskProfile) {
-        return defaultTopology(topology).getSRLGDisjointPaths(src, dst, weight, riskProfile);
+    public Set<DisjointPath> getDisjointPaths(Topology topology, DeviceId src, DeviceId dst,
+                                              LinkWeight weight, Map<Link, Object> riskProfile) {
+        return defaultTopology(topology).getDisjointPaths(src, dst, weight, riskProfile);
     }
 
     @Override